Building Disaster Tolerant Serviceguard Solutions Using Metrocluster with Continuous Access EVA
Files for Integrating the EVA with Serviceguard Clusters
Chapter 4 229
Metrocluster Continuous Access EVA software has to be installed on all
nodes that will run a Serviceguard package whose data is on an HP
StorageWorks EVA and where the data is replicated to a second EVA
using the Continuous Access EVA facility. In the event of a node failure,
the integration of Metrocluster Continuous Access EVA with the package
will allow the application to fail over in the following ways:
• Among local host systems attached to the same EVA.
• Between one system that is attached locally to its EVA and
another “remote” host that is attached locally to the other EVA.
Configuration of Metrocluster Continuous Access EVA must be done on
all the cluster nodes, as is done for any other Serviceguard package. To
use Metrocluster Continuous Access EVA, Management Server and
SMI-S EVA must also be installed and configured on each Metrocluster
Continuous Access EVA solution.
/opt/cmcluster/toolkit/SGCA
EVA/caeva.env
The Metrocluster Continuous Access EVA
environment file. This file must be customized for
specific EVA DR groups and Serviceguard packages.
Copies of this file must be customized for each
separate Serviceguard package.
/opt/cmcluster/toolkit/SGCA
EVA/Samples
A directory containing sample convenience shell
scripts that must be edited before using. These shell
scripts may help to automate some configuration
tasks. These scripts are contributed, and not
supported.
Table 4-1 Metrocluster Continuous Access EVA Template Files (Continued)
Name Description